IM 253401-01E
7-2
Continous Integration Mode (Repeat Integration)
• Integration starts:
• after having pressed the START key;
• when the preset time for integration is reached, the integrated value and integration elapsed
time are reset automatically and restarted immediately.
• Integration stops:
• when the preset time for integration is reached; however, the integrated value and
integration elapsed time are reset automatically and restarted immediately;
• after having pressed the STOP key;
• when the integrated value reaches the maximum of 999999MWh/MAh, or when the
integrated value of negative polarity reaches –99999MWh/MAh;
• Integration holds: the integration elapsed time and integrated values at the point where they
reached the maximum or at the point where the STOP key was pressed will be held until the
RESET key is pressed.
Integrated
value
Integration
time
Start
Reset
Hold
Integration
timer preset
time
Stop
Hold
Integration
timer preset
time
Integration
timer preset
time
Integration Methods
Each display update interval (250ms) the apparent power values or current values are added to
the integrated values, and will be time converted. The integration equations are as follows.
Power integration
T=0
t
W
i
4
×
3600
Wi : Active power between display update interval
t
: Preset integration time
Current integration
T=0
t
A
i
4
×
3600
Ai : Current value between display update interval
t
: Preset integration time
7.1 Integrator Functions
